No still think screen at fault, my dh's screen would only work if pressed firmly/thumped for certain buttons as I was reading my book I felt sorry for person in front of him so gave him my seat and screen which meant he could press lightly and watch without disturbing. I was thumped on journey out and journey back.

Why are they thumping? I've been on lots of long haul flights with these sort of screens and have never been aware of the person behind using them They are a good idea on the level that everyone is entertained for the flight...Where else do you suggest they are situated?

Totally agree with you. But I was the perp (on a different flight) and could hear the moaning from the passenger in front who had put his seat right back so that I could count the dandruff flakes in his hair (what was left of it).